Biology 5090 · 6 Plant nutrition
6.3 Mineral nutrition
Explain the importance of nitrate and magnesium ions in plant protein and chlorophyll synthesis.
- Questions
- 66
- Years
- 2005–2026
- Multiple choice
- 48
- Written answer
- 18
- Average marks
- 3.7
Where this subtopic appears
- Paper 1variants 01, 11, 1248
- Paper 2variants 02, 21, 2214
- Paper 3variants 31, 322
- Paper 6variants 612
Questions by year
| Year | May/June | Oct/Nov | Total |
|---|---|---|---|
| 2026 | 1 | – | 1 |
| 2023 | 1 | 3 | 4 |
| 2022 | 2 | 5 | 7 |
| 2021 | 3 | 3 | 6 |
| 2020 | 3 | 2 | 5 |
| 2019 | 2 | 3 | 5 |
| 2018 | 3 | – | 3 |
| 2017 | 2 | 1 | 3 |
| 2016 | – | 4 | 4 |
| 2015 | 3 | 4 | 7 |
| 2014 | 2 | 2 | 4 |
| 2013 | 1 | 1 | 2 |
| 2012 | 3 | – | 3 |
| 2011 | 2 | – | 2 |
| 2010 | – | 2 | 2 |
| 2009 | 1 | 1 | 2 |
| 2008 | – | 1 | 1 |
| 2007 | 1 | 2 | 3 |
| 2006 | – | 1 | 1 |
| 2005 | – | 1 | 1 |
